Improvement in carriage-axles



entre @eine @anni (twine.

Leners Patent No. 107,783, dead september 27, 1870.

IMPROVEMENT IN CA'RRIAGE-AXLES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern Be it known that I, HENRY KILLAM, of New Haven," in `the county of New Haven 4and State of Conneeticut,have invented a new Improvement in Carriage-Axles and I. do hereby declare the following, when taken in connection with the accompanying drawing and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent in Figure 1, a side view, `andiii Figure 2 a longitudinal section.

This invention relates to an improvement .in .that class of axles in which a nut ou the end of the axle is turned on to compress a iiexible washer against the end of the box.

In this construction, if the nut be turned up against theexible washer, the turning of the wheel is liable to screw on the nut and set'the wheel. 'fo-overcome this ditiiculty, a D.shaped`collar. has heretofore been introduced between the iiexible washer and nut. rI he D`shape prevents the washer from turning; but, in

` `this construction, a difficulty occurs, for if the nut, by

accident, be turned a little too tight, the wheel is bound, and there is no means of governing thc pressure. y

Llo overcome these diiicnlties is the object of the present invention, which consists inthe arrangement Aof a st op in the nut, so that, when turned upto a d the nut. p

Through the end of the nut l place a set-screw,f, with a finer thread than that of the nut and axle, and so as to bear against the end of the axle, or into a recess formed in the end ofthe axle, as seen in the drawing.

When the wheel is placed on the axle, and the exible washer next the box, the nut d is then screwed on until in the proper position for the free turning of the wheel, then the screw f is turned down .hard onto its seat in the end ofthe axle. This prevents the nut from turning with the wheel, and, at the same time,

insures the resetting of the nut, after removal, to pre: cisel y the same position, and, by the screw, the position of the nut maybe easily adjusted to different thicknesses of washers.

Instead ofthe screw, as shown in iig. 2, substantially the same result may be obtained by thin metal disks, placed within thc nut, so as to fill the space between the head of the nnt'and the end of the axle, as seen in Figure 3, the'number of disks being governed by thethiekness of the washer. The thicker the washer, the greater the number of disks, it being only necessary that a firm bearing be made between the axle and nut, to govern the position of the washer.

In this class of axles it is common to cover the uut d by av larger nut, C, turning onto the box.

I claim as my invention- In combination with the axle A, box B, and ilexible washer a, the nut (l, when the said nut is constructed or provided with a device for'adjust-ing or fixing its position on the axle, substantially in the man ner herein set forth. l

HENRY KILLAM. Witnesses:

J.' H. SHUMWAY,

A. J TIBBITS. 

